The Paralenz can go to 200 metres depth without any additional housing and automatically corrects color, using a pressure sensor to detect the depth you’re diving at. Conventional action cams typically require the use of filters to correct for underwater light conditions.

Saw this yesterday in one of my usual dive shops and asked the staff about it. Apparently the first batch had defective end caps that resulted in flooding, but they were able to send those back and get them replaced for free. Since then, no such issues.

One of them decided to test the battery life by just leaving it running in the shop and got 4 hours out of it. That last bit is good since unlike the GoPro it seems the battery is built into the camera rather than something you can swap out; unless you have an outlet handy on the boat to recharge that's it for the day.